SHP 91oct and 93oct Calibrations included *(additional charge is vehicle has Headers)

SHP 72mm SC Pulley

NGK Spark Plugs (16)

This SHP650FR* Upgrade Package increases the ROUSH Phase 1 & Phase 2 SC Kits to 650+HP, using 93 octane. The HP and TQ gains are throughout the entire RPM range and keeps making power to the 6250 rpm redline. We also raise the Speed Limiter above the annoying 100mph cut-off! Available for 6.2L F-150's with RPP TVS SC. Throttle response and Shift Schedules are all optimized for Daily Driven needs all the way to Track use!!! SHP only recommends NGK-6510 Spark Plugs with this package.